User:Ralph

Welcome from Ralph Holland, VK1BRH

I have migrated some historical pages away from the original static www.arising.com.au website and preserved other links for you to view:

I am still migrating some of the old pages so you might like to check back later.

Ralph Holland has knowledge covering several domains. Which includes these interests to name a few:

amateur radio and electronics,
computer simulation, including antenna simulation,
radar systems and message formats,
tracking system software development (Kalman filters et al.),
real-time GIS systems (2D and 3D),
Attribute and Role Based Access Control Systems,
Real-time Security and Communications Software,
Radio Systems Engineering,
Instrument Flying - he holds a Command Instrument Rating, and
Software research development in various arenas:
- real-time messaging
- scalable concurrent software
- efficient concurrent collections
- fifth-generation and real-time geospatial databases
using various languages, including:
- compiled: Ada, C++, C, Pascal, FORTRAN
- virtual or interpreted: Java, JavaScript, node-js, Perl, Python, (a bit of C#),
- and in the distant past: Assembly languages, LISP, Snobol, Simular, COBOL and PL1/g (and even INFO-BASIC),
- Ralph also wrote boot-strap compilers for:
  - Ada
  - Pascal
  - portable-C, and
- Cross-compilers for FORTRAN to C++ - well before GNU was born.

More details (some are not visible to public):